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Y2O3:Eu3+ illuminant doped MgB2 superconductor with high critical transition temperature
The invention relates to an Y2O3:Eu3+ illuminant doped MgB2 superconductor with a high critical transition temperature. The Y2O3:Eu3+ illuminant is used to change the MgB2 superconductor transition temperature. The hydrothermal method is adopted to prepare an Y2O3:Eu3+ nano rod, and a solid doping method is utilized to prepare the Y2O3:Eu3+ illuminant doped MgB2 superconductor. In the hydrothermal method, the mole ratio of Y to Eu is 0.95:0.05; in the prepared Y2O3:Eu3+ illuminant doped MgB2 superconductor, the atomic ratio of Mg and B is 1.2:2, and the Y2O3:Eu3+ illuminant accounts for 4 to 8% of the total weight of the MgB2 superconductor. In the absence of an external magnetic field, when the Y2O3:Eu3+ illuminant accounts for 8% of the total weight of the MgB2 superconductor, the Tc (37.4 K) of the doped MgB2 superconductor is higher than that (Tc=37 K) of the pure MgB2.
Y2O3:Eu3+ illuminant doped MgB2 superconductor with high critical transition temperature
The invention relates to an Y2O3:Eu3+ illuminant doped MgB2 superconductor with a high critical transition temperature. The Y2O3:Eu3+ illuminant is used to change the MgB2 superconductor transition temperature. The hydrothermal method is adopted to prepare an Y2O3:Eu3+ nano rod, and a solid doping method is utilized to prepare the Y2O3:Eu3+ illuminant doped MgB2 superconductor. In the hydrothermal method, the mole ratio of Y to Eu is 0.95:0.05; in the prepared Y2O3:Eu3+ illuminant doped MgB2 superconductor, the atomic ratio of Mg and B is 1.2:2, and the Y2O3:Eu3+ illuminant accounts for 4 to 8% of the total weight of the MgB2 superconductor. In the absence of an external magnetic field, when the Y2O3:Eu3+ illuminant accounts for 8% of the total weight of the MgB2 superconductor, the Tc (37.4 K) of the doped MgB2 superconductor is higher than that (Tc=37 K) of the pure MgB2.
Y2O3:Eu3+ illuminant doped MgB2 superconductor with high critical transition temperature
ZHAO XIAOPENG (author) / ZHANG ZHIWEI (author) / TAO SHUO (author) / CHEN GUOWEI (author)
2015-07-15
Patent
Electronic Resource
English
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